Preheat oven to 425. Spray a wire rack with veggie spray and place on a baking sheet. In bowl combine flour, beer, egg whites, and salt. Beat until smooth. In separate bowl stir bread crumbs, pecans, pepper and salt. Dip shrimp in bread crumb mixture then into beer batter and dredge a second time in bread crumbs. Set on prepared rack and bake 12 minutes. Serves 5.